package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh

   1 #!/bin/sh
   2 . /lib/netifd/netifd-wireless.sh
   3 . /lib/netifd/hostapd.sh
   4
   5 init_wireless_driver "$@"
   6
   7 MP_CONFIG_INT="mesh_retry_timeout mesh_confirm_timeout mesh_holding_timeout mesh_max_peer_links
   8                mesh_max_retries mesh_ttl mesh_element_ttl mesh_hwmp_max_preq_retries
   9                mesh_path_refresh_time mesh_min_discovery_timeout mesh_hwmp_active_path_timeout
  10                mesh_hwmp_preq_min_interval mesh_hwmp_net_diameter_traversal_time mesh_hwmp_rootmode
  11                mesh_hwmp_rann_interval mesh_gate_announcements mesh_sync_offset_max_neighor
  12                mesh_rssi_threshold mesh_hwmp_active_path_to_root_timeout mesh_hwmp_root_interval
  13                mesh_hwmp_confirmation_interval mesh_awake_window mesh_plink_timeout"
  14 MP_CONFIG_BOOL="mesh_auto_open_plinks mesh_fwding"
  15 MP_CONFIG_STRING="mesh_power_mode"
  16
  17 iw() {
  18         command iw $@ || logger -t mac80211 "Failed command: iw $@"
  19 }
  20
  21 drv_mac80211_init_device_config() {
  22         hostapd_common_add_device_config
  23
  24         config_add_string path phy 'macaddr:macaddr'
  25         config_add_string hwmode
  26         config_add_string tx_burst
  27         config_add_int beacon_int chanbw frag rts
  28         config_add_int rxantenna txantenna antenna_gain txpower distance
  29         config_add_boolean noscan ht_coex
  30         config_add_array ht_capab
  31         config_add_array channels
  32         config_add_boolean \
  33                 rxldpc \
  34                 short_gi_80 \
  35                 short_gi_160 \
  36                 tx_stbc_2by1 \
  37                 su_beamformer \
  38                 su_beamformee \
  39                 mu_beamformer \
  40                 mu_beamformee \
  41                 vht_txop_ps \
  42                 htc_vht \
  43                 rx_antenna_pattern \
  44                 tx_antenna_pattern
  45         config_add_int vht_max_a_mpdu_len_exp vht_max_mpdu vht_link_adapt vht160 rx_stbc tx_stbc
  46         config_add_boolean \
  47                 ldpc \
  48                 greenfield \
  49                 short_gi_20 \
  50                 short_gi_40 \
  51                 max_amsdu \
  52                 dsss_cck_40
  53 }
  54
  55 drv_mac80211_init_iface_config() {
  56         hostapd_common_add_bss_config
  57
  58         config_add_string 'macaddr:macaddr' ifname
  59
  60         config_add_boolean wds powersave
  61         config_add_int maxassoc
  62         config_add_int max_listen_int
  63         config_add_int dtim_period
  64         config_add_int start_disabled
  65
  66         # mesh
  67         config_add_string mesh_id
  68         config_add_int $MP_CONFIG_INT
  69         config_add_boolean $MP_CONFIG_BOOL
  70         config_add_string $MP_CONFIG_STRING
  71 }
  72
  73 mac80211_add_capabilities() {
  74         local __var="$1"; shift
  75         local __mask="$1"; shift
  76         local __out= oifs
  77
  78         oifs="$IFS"
  79         IFS=:
  80         for capab in "$@"; do
  81                 set -- $capab
  82
  83                 [ "$(($4))" -gt 0 ] || continue
  84                 [ "$(($__mask & $2))" -eq "$((${3:-$2}))" ] || continue
  85                 __out="$__out[$1]"
  86         done
  87         IFS="$oifs"
  88
  89         export -n -- "$__var=$__out"
  90 }
  91
  92 mac80211_hostapd_setup_base() {
  93         local phy="$1"
  94
  95         json_select config
  96
  97         [ "$auto_channel" -gt 0 ] && channel=acs_survey
  98         [ "$auto_channel" -gt 0 ] && json_get_values channel_list channels
  99
 100         json_get_vars noscan ht_coex
 101         json_get_values ht_capab_list ht_capab tx_burst
 102
 103         set_default noscan 0
 104
 105         [ "$noscan" -gt 0 ] && hostapd_noscan=1
 106         [ "$tx_burst" = 0 ] && tx_burst=
 107
 108         ieee80211n=1
 109         ht_capab=
 110         case "$htmode" in
 111                 VHT20|HT20) ;;
 112                 HT40*|VHT40|VHT80|VHT160)
 113                         case "$hwmode" in
 114                                 a)
 115                                         case "$(( ($channel / 4) % 2 ))" in
 116                                                 1) ht_capab="[HT40+]";;
 117                                                 0) ht_capab="[HT40-]";;
 118                                         esac
 119                                 ;;
 120                                 *)
 121                                         case "$htmode" in
 122                                                 HT40+) ht_capab="[HT40+]";;
 123                                                 HT40-) ht_capab="[HT40-]";;
 124                                                 *)
 125                                                         if [ "$channel" -lt 7 ]; then
 126                                                                 ht_capab="[HT40+]"
 127                                                         else
 128                                                                 ht_capab="[HT40-]"
 129                                                         fi
 130                                                 ;;
 131                                         esac
 132                                 ;;
 133                         esac
 134                         [ "$auto_channel" -gt 0 ] && ht_capab="[HT40+]"
 135                 ;;
 136                 *) ieee80211n= ;;
 137         esac
 138
 139         [ -n "$ieee80211n" ] && {
 140                 append base_cfg "ieee80211n=1" "$N"
 141
 142                 set_default ht_coex 0
 143                 append base_cfg "ht_coex=$ht_coex" "$N"
 144
 145                 json_get_vars \
 146                         ldpc:1 \
 147                         greenfield:0 \
 148                         short_gi_20:1 \
 149                         short_gi_40:1 \
 150                         tx_stbc:1 \
 151                         rx_stbc:3 \
 152                         max_amsdu:1 \
 153                         dsss_cck_40:1
 154
 155                 ht_cap_mask=0
 156                 for cap in $(iw phy "$phy" info | grep 'Capabilities:' | cut -d: -f2); do
 157                         ht_cap_mask="$(($ht_cap_mask | $cap))"
 158                 done
 159
 160                 cap_rx_stbc=$((($ht_cap_mask >> 8) & 3))
 161                 [ "$rx_stbc" -lt "$cap_rx_stbc" ] && cap_rx_stbc="$rx_stbc"
 162                 ht_cap_mask="$(( ($ht_cap_mask & ~(0x300)) | ($cap_rx_stbc << 8) ))"
 163
 164                 mac80211_add_capabilities ht_capab_flags $ht_cap_mask \
 165                         LDPC:0x1::$ldpc \
 166                         GF:0x10::$greenfield \
 167                         SHORT-GI-20:0x20::$short_gi_20 \
 168                         SHORT-GI-40:0x40::$short_gi_40 \
 169                         TX-STBC:0x80::$tx_stbc \
 170                         RX-STBC1:0x300:0x100:1 \
 171                         RX-STBC12:0x300:0x200:1 \
 172                         RX-STBC123:0x300:0x300:1 \
 173                         MAX-AMSDU-7935:0x800::$max_amsdu \
 174                         DSSS_CCK-40:0x1000::$dsss_cck_40
 175
 176                 ht_capab="$ht_capab$ht_capab_flags"
 177                 [ -n "$ht_capab" ] && append base_cfg "ht_capab=$ht_capab" "$N"
 178         }
 179
 180         # 802.11ac
 181         enable_ac=0
 182         idx="$channel"
 183         case "$htmode" in
 184                 VHT20) enable_ac=1;;
 185                 VHT40)
 186                         case "$(( ($channel / 4) % 2 ))" in
 187                                 1) idx=$(($channel + 2));;
 188                                 0) idx=$(($channel - 2));;
 189                         esac
 190                         enable_ac=1
 191                         append base_cfg "vht_oper_chwidth=0" "$N"
 192                         append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
 193                 ;;
 194                 VHT80)
 195                         case "$(( ($channel / 4) % 4 ))" in
 196                                 1) idx=$(($channel + 6));;
 197                                 2) idx=$(($channel + 2));;
 198                                 3) idx=$(($channel - 2));;
 199                                 0) idx=$(($channel - 6));;
 200                         esac
 201                         enable_ac=1
 202                         append base_cfg "vht_oper_chwidth=1" "$N"
 203                         append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
 204                 ;;
 205                 VHT160)
 206                         case "$channel" in
 207                                 36|40|44|48|52|56|60|64) idx=50;;
 208                                 100|104|108|112|116|120|124|128) idx=114;;
 209                         esac
 210                         enable_ac=1
 211                         append base_cfg "vht_oper_chwidth=2" "$N"
 212                         append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
 213                 ;;
 214         esac
 215
 216         if [ "$enable_ac" != "0" ]; then
 217                 json_get_vars \
 218                         rxldpc:1 \
 219                         short_gi_80:1 \
 220                         short_gi_160:1 \
 221                         tx_stbc_2by1:1 \
 222                         su_beamformer:1 \
 223                         su_beamformee:1 \
 224                         mu_beamformer:1 \
 225                         mu_beamformee:1 \
 226                         vht_txop_ps:1 \
 227                         htc_vht:1 \
 228                         rx_antenna_pattern:1 \
 229                         tx_antenna_pattern:1 \
 230                         vht_max_a_mpdu_len_exp:7 \
 231                         vht_max_mpdu:11454 \
 232                         rx_stbc:4 \
 233                         vht_link_adapt:3 \
 234                         vht160:2
 235
 236                 set_default tx_burst 2.0
 237                 append base_cfg "ieee80211ac=1" "$N"
 238                 vht_cap=0
 239                 for cap in $(iw phy "$phy" info | awk -F "[()]" '/VHT Capabilities/ { print $2 }'); do
 240                         vht_cap="$(($vht_cap | $cap))"
 241                 done
 242
 243                 cap_rx_stbc=$((($vht_cap >> 8) & 7))
 244                 [ "$rx_stbc" -lt "$cap_rx_stbc" ] && cap_rx_stbc="$rx_stbc"
 245                 vht_cap="$(( ($vht_cap & ~(0x700)) | ($cap_rx_stbc << 8) ))"
 246
 247                 mac80211_add_capabilities vht_capab $vht_cap \
 248                         RXLDPC:0x10::$rxldpc \
 249                         SHORT-GI-80:0x20::$short_gi_80 \
 250                         SHORT-GI-160:0x40::$short_gi_160 \
 251                         TX-STBC-2BY1:0x80::$tx_stbc_2by1 \
 252                         SU-BEAMFORMER:0x800::$su_beamformer \
 253                         SU-BEAMFORMEE:0x1000::$su_beamformee \
 254                         MU-BEAMFORMER:0x80000::$mu_beamformer \
 255                         MU-BEAMFORMEE:0x100000::$mu_beamformee \
 256                         VHT-TXOP-PS:0x200000::$vht_txop_ps \
 257                         HTC-VHT:0x400000::$htc_vht \
 258                         RX-ANTENNA-PATTERN:0x10000000::$rx_antenna_pattern \
 259                         TX-ANTENNA-PATTERN:0x20000000::$tx_antenna_pattern \
 260                         RX-STBC-1:0x700:0x100:1 \
 261                         RX-STBC-12:0x700:0x200:1 \
 262                         RX-STBC-123:0x700:0x300:1 \
 263                         RX-STBC-1234:0x700:0x400:1 \
 264
 265                 # supported Channel widths
 266                 vht160_hw=0
 267                 [ "$(($vht_cap & 12))" -eq 4 -a 1 -le "$vht160" ] && \
 268                         vht160_hw=1
 269                 [ "$(($vht_cap & 12))" -eq 8 -a 2 -le "$vht160" ] && \
 270                         vht160_hw=2
 271                 [ "$vht160_hw" = 1 ] && vht_capab="$vht_capab[VHT160]"
 272                 [ "$vht160_hw" = 2 ] && vht_capab="$vht_capab[VHT160-80PLUS80]"
 273
 274                 # maximum MPDU length
 275                 vht_max_mpdu_hw=3895
 276                 [ "$(($vht_cap & 3))" -ge 1 -a 7991 -le "$vht_max_mpdu" ] && \
 277                         vht_max_mpdu_hw=7991
 278                 [ "$(($vht_cap & 3))" -ge 2 -a 11454 -le "$vht_max_mpdu" ] && \
 279                         vht_max_mpdu_hw=11454
 280                 [ "$vht_max_mpdu_hw" != 3895 ] && \
 281                         vht_capab="$vht_capab[MAX-MPDU-$vht_max_mpdu_hw]"
 282
 283                 # maximum A-MPDU length exponent
 284                 vht_max_a_mpdu_len_exp_hw=0
 285                 [ "$(($vht_cap & 58720256))" -ge 8388608 -a 1 -le "$vht_max_a_mpdu_len_exp" ] && \
 286                         vht_max_a_mpdu_len_exp_hw=1
 287                 [ "$(($vht_cap & 58720256))" -ge 16777216 -a 2 -le "$vht_max_a_mpdu_len_exp" ] && \
 288                         vht_max_a_mpdu_len_exp_hw=2
 289                 [ "$(($vht_cap & 58720256))" -ge 25165824 -a 3 -le "$vht_max_a_mpdu_len_exp" ] && \
 290                         vht_max_a_mpdu_len_exp_hw=3
 291                 [ "$(($vht_cap & 58720256))" -ge 33554432 -a 4 -le "$vht_max_a_mpdu_len_exp" ] && \
 292                         vht_max_a_mpdu_len_exp_hw=4
 293                 [ "$(($vht_cap & 58720256))" -ge 41943040 -a 5 -le "$vht_max_a_mpdu_len_exp" ] && \
 294                         vht_max_a_mpdu_len_exp_hw=5
 295                 [ "$(($vht_cap & 58720256))" -ge 50331648 -a 6 -le "$vht_max_a_mpdu_len_exp" ] && \
 296                         vht_max_a_mpdu_len_exp_hw=6
 297                 [ "$(($vht_cap & 58720256))" -ge 58720256 -a 7 -le "$vht_max_a_mpdu_len_exp" ] && \
 298                         vht_max_a_mpdu_len_exp_hw=7
 299                 vht_capab="$vht_capab[MAX-A-MPDU-LEN-EXP$vht_max_a_mpdu_len_exp_hw]"
 300
 301                 # whether or not the STA supports link adaptation using VHT variant
 302                 vht_link_adapt_hw=0
 303                 [ "$(($vht_cap & 201326592))" -ge 134217728 -a 2 -le "$vht_link_adapt" ] && \
 304                         vht_link_adapt_hw=2
 305                 [ "$(($vht_cap & 201326592))" -ge 201326592 -a 3 -le "$vht_link_adapt" ] && \
 306                         vht_link_adapt_hw=3
 307                 [ "$vht_link_adapt_hw" != 0 ] && \
 308                         vht_capab="$vht_capab[VHT-LINK-ADAPT-$vht_link_adapt_hw]"
 309
 310                 [ -n "$vht_capab" ] && append base_cfg "vht_capab=$vht_capab" "$N"
 311         fi
 312
 313         hostapd_prepare_device_config "$hostapd_conf_file" nl80211
 314         cat >> "$hostapd_conf_file" <<EOF
 315 ${channel:+channel=$channel}
 316 ${channel_list:+chanlist=$channel_list}
 317 ${hostapd_noscan:+noscan=1}
 318 ${tx_burst:+tx_queue_data2_burst=$tx_burst}
 319 $base_cfg
 320
 321 EOF
 322         json_select ..
 323 }
 324
 325 mac80211_hostapd_setup_bss() {
 326         local phy="$1"
 327         local ifname="$2"
 328         local macaddr="$3"
 329         local type="$4"
 330
 331         hostapd_cfg=
 332         append hostapd_cfg "$type=$ifname" "$N"
 333
 334         hostapd_set_bss_options hostapd_cfg "$vif" || return 1
 335         json_get_vars wds dtim_period max_listen_int start_disabled
 336
 337         set_default wds 0
 338         set_default start_disabled 0
 339
 340         [ "$wds" -gt 0 ] && append hostapd_cfg "wds_sta=1" "$N"
 341         [ "$staidx" -gt 0 -o "$start_disabled" -eq 1 ] && append hostapd_cfg "start_disabled=1" "$N"
 342
 343         cat >> /var/run/hostapd-$phy.conf <<EOF
 344 $hostapd_cfg
 345 bssid=$macaddr
 346 ${dtim_period:+dtim_period=$dtim_period}
 347 ${max_listen_int:+max_listen_interval=$max_listen_int}
 348 EOF
 349 }
 350
 351 mac80211_get_addr() {
 352         local phy="$1"
 353         local idx="$(($2 + 1))"
 354
 355         head -n $(($macidx + 1)) /sys/class/ieee80211/${phy}/addresses | tail -n1
 356 }
 357
 358 mac80211_generate_mac() {
 359         local phy="$1"
 360         local id="${macidx:-0}"
 361
 362         local ref="$(cat /sys/class/ieee80211/${phy}/macaddress)"
 363         local mask="$(cat /sys/class/ieee80211/${phy}/address_mask)"
 364
 365         [ "$mask" = "00:00:00:00:00:00" ] && {
 366                 mask="ff:ff:ff:ff:ff:ff";
 367
 368                 [ "$(wc -l < /sys/class/ieee80211/${phy}/addresses)" -gt 1 ] && {
 369                         addr="$(mac80211_get_addr "$phy" "$id")"
 370                         [ -n "$addr" ] && {
 371                                 echo "$addr"
 372                                 return
 373                         }
 374                 }
 375         }
 376
 377         local oIFS="$IFS"; IFS=":"; set -- $mask; IFS="$oIFS"
 378
 379         local mask1=$1
 380         local mask6=$6
 381
 382         local oIFS="$IFS"; IFS=":"; set -- $ref; IFS="$oIFS"
 383
 384         macidx=$(($id + 1))
 385         [ "$((0x$mask1))" -gt 0 ] && {
 386                 b1="0x$1"
 387                 [ "$id" -gt 0 ] && \
 388                         b1=$(($b1 ^ ((($id - 1) << 2) | 0x2)))
 389                 printf "%02x:%s:%s:%s:%s:%s" $b1 $2 $3 $4 $5 $6
 390                 return
 391         }
 392
 393         [ "$((0x$mask6))" -lt 255 ] && {
 394                 printf "%s:%s:%s:%s:%s:%02x" $1 $2 $3 $4 $5 $(( 0x$6 ^ $id ))
 395                 return
 396         }
 397
 398         off2=$(( (0x$6 + $id) / 0x100 ))
 399         printf "%s:%s:%s:%s:%02x:%02x" \
 400                 $1 $2 $3 $4 \
 401                 $(( (0x$5 + $off2) % 0x100 )) \
 402                 $(( (0x$6 + $id) % 0x100 ))
 403 }
 404
 405 find_phy() {
 406         [ -n "$phy" -a -d /sys/class/ieee80211/$phy ] && return 0
 407         [ -n "$path" ] && {
 408                 for phy in $(ls /sys/class/ieee80211 2>/dev/null); do
 409                         case "$(readlink -f /sys/class/ieee80211/$phy/device)" in
 410                                 *$path) return 0;;
 411                         esac
 412                 done
 413         }
 414         [ -n "$macaddr" ] && {
 415                 for phy in $(ls /sys/class/ieee80211 2>/dev/null); do
 416                         grep -i -q "$macaddr" "/sys/class/ieee80211/${phy}/macaddress" && return 0
 417                 done
 418         }
 419         return 1
 420 }
 421
 422 mac80211_check_ap() {
 423         has_ap=1
 424 }
 425
 426 mac80211_iw_interface_add() {
 427         local phy="$1"
 428         local ifname="$2"
 429         local type="$3"
 430         local wdsflag="$4"
 431         local rc
 432
 433         iw phy "$phy" interface add "$ifname" type "$type" $wdsflag
 434         rc="$?"
 435
 436         [ "$rc" = 233 ] && {
 437                 # Device might have just been deleted, give the kernel some time to finish cleaning it up
 438                 sleep 1
 439
 440                 iw phy "$phy" interface add "$ifname" type "$type" $wdsflag
 441                 rc="$?"
 442         }
 443
 444         [ "$rc" = 233 ] && {
 445                 # Device might not support virtual interfaces, so the interface never got deleted in the first place.
 446                 # Check if the interface already exists, and avoid failing in this case.
 447                 ip link show dev "$ifname" >/dev/null 2>/dev/null && rc=0
 448         }
 449
 450         [ "$rc" != 0 ] && wireless_setup_failed INTERFACE_CREATION_FAILED
 451         return $rc
 452 }
 453
 454 mac80211_prepare_vif() {
 455         json_select config
 456
 457         json_get_vars ifname mode ssid wds powersave macaddr
 458
 459         [ -n "$ifname" ] || ifname="wlan${phy#phy}${if_idx:+-$if_idx}"
 460         if_idx=$((${if_idx:-0} + 1))
 461
 462         set_default wds 0
 463         set_default powersave 0
 464
 465         json_select ..
 466
 467         [ -n "$macaddr" ] || {
 468                 macaddr="$(mac80211_generate_mac $phy)"
 469                 macidx="$(($macidx + 1))"
 470         }
 471
 472         json_add_object data
 473         json_add_string ifname "$ifname"
 474         json_close_object
 475         json_select config
 476
 477         # It is far easier to delete and create the desired interface
 478         case "$mode" in
 479                 adhoc)
 480                         mac80211_iw_interface_add "$phy" "$ifname" adhoc || return
 481                 ;;
 482                 ap)
 483                         # Hostapd will handle recreating the interface and
 484                         # subsequent virtual APs belonging to the same PHY
 485                         if [ -n "$hostapd_ctrl" ]; then
 486                                 type=bss
 487                         else
 488                                 type=interface
 489                         fi
 490
 491                         mac80211_hostapd_setup_bss "$phy" "$ifname" "$macaddr" "$type" || return
 492
 493                         [ -n "$hostapd_ctrl" ] || {
 494                                 mac80211_iw_interface_add "$phy" "$ifname" __ap || return
 495                                 hostapd_ctrl="${hostapd_ctrl:-/var/run/hostapd/$ifname}"
 496                         }
 497                 ;;
 498                 mesh)
 499                         mac80211_iw_interface_add "$phy" "$ifname" mp || return
 500                 ;;
 501                 monitor)
 502                         mac80211_iw_interface_add "$phy" "$ifname" monitor || return
 503                 ;;
 504                 sta)
 505                         local wdsflag=
 506                         staidx="$(($staidx + 1))"
 507                         [ "$wds" -gt 0 ] && wdsflag="4addr on"
 508                         mac80211_iw_interface_add "$phy" "$ifname" managed "$wdsflag" || return
 509                         [ "$powersave" -gt 0 ] && powersave="on" || powersave="off"
 510                         iw "$ifname" set power_save "$powersave"
 511                 ;;
 512         esac
 513
 514         case "$mode" in
 515                 monitor|mesh)
 516                         [ "$auto_channel" -gt 0 ] || iw dev "$ifname" set channel "$channel" $htmode
 517                 ;;
 518         esac
 519
 520         if [ "$mode" != "ap" ]; then
 521                 # ALL ap functionality will be passed to hostapd
 522                 # All interfaces must have unique mac addresses
 523                 # which can either be explicitly set in the device
 524                 # section, or automatically generated
 525                 ip link set dev "$ifname" address "$macaddr"
 526         fi
 527
 528         json_select ..
 529 }
 530
 531 mac80211_setup_supplicant() {
 532         wpa_supplicant_prepare_interface "$ifname" nl80211 || return 1
 533         if [ "$mode" = "sta" ]; then
 534                 wpa_supplicant_add_network "$ifname"
 535         else
 536                 wpa_supplicant_add_network "$ifname" "$freq" "$htmode" "$noscan"
 537         fi
 538         wpa_supplicant_run "$ifname" ${hostapd_ctrl:+-H $hostapd_ctrl}
 539 }
 540
 541 mac80211_setup_supplicant_noctl() {
 542         wpa_supplicant_prepare_interface "$ifname" nl80211 || return 1
 543         wpa_supplicant_add_network "$ifname" "$freq" "$htmode" "$noscan"
 544         wpa_supplicant_run "$ifname"
 545 }
 546
 547 mac80211_setup_adhoc_htmode() {
 548         case "$htmode" in
 549                 VHT20|HT20) ibss_htmode=HT20;;
 550                 HT40*|VHT40|VHT160)
 551                         case "$hwmode" in
 552                                 a)
 553                                         case "$(( ($channel / 4) % 2 ))" in
 554                                                 1) ibss_htmode="HT40+" ;;
 555                                                 0) ibss_htmode="HT40-";;
 556                                         esac
 557                                 ;;
 558                                 *)
 559                                         case "$htmode" in
 560                                                 HT40+) ibss_htmode="HT40+";;
 561                                                 HT40-) ibss_htmode="HT40-";;
 562                                                 *)
 563                                                         if [ "$channel" -lt 7 ]; then
 564                                                                 ibss_htmode="HT40+"
 565                                                         else
 566                                                                 ibss_htmode="HT40-"
 567                                                         fi
 568                                                 ;;
 569                                         esac
 570                                 ;;
 571                         esac
 572                         [ "$auto_channel" -gt 0 ] && ibss_htmode="HT40+"
 573                 ;;
 574                 VHT80)
 575                         ibss_htmode="80MHZ"
 576                 ;;
 577                 NONE|NOHT)
 578                         ibss_htmode="NOHT"
 579                 ;;
 580                 *) ibss_htmode="" ;;
 581         esac
 582
 583 }
 584
 585 mac80211_setup_adhoc() {
 586         json_get_vars bssid ssid key mcast_rate
 587
 588         keyspec=
 589         [ "$auth_type" = "wep" ] && {
 590                 set_default key 1
 591                 case "$key" in
 592                         [1234])
 593                                 local idx
 594                                 for idx in 1 2 3 4; do
 595                                         json_get_var ikey "key$idx"
 596
 597                                         [ -n "$ikey" ] && {
 598                                                 ikey="$(($idx - 1)):$(prepare_key_wep "$ikey")"
 599                                                 [ $idx -eq $key ] && ikey="d:$ikey"
 600                                                 append keyspec "$ikey"
 601                                         }
 602                                 done
 603                         ;;
 604                         *)
 605                                 append keyspec "d:0:$(prepare_key_wep "$key")"
 606                         ;;
 607                 esac
 608         }
 609
 610         brstr=
 611         for br in $basic_rate_list; do
 612                 wpa_supplicant_add_rate brstr "$br"
 613         done
 614
 615         mcval=
 616         [ -n "$mcast_rate" ] && wpa_supplicant_add_rate mcval "$mcast_rate"
 617
 618         iw dev "$ifname" ibss join "$ssid" $freq $ibss_htmode fixed-freq $bssid \
 619                 beacon-interval $beacon_int \
 620                 ${brstr:+basic-rates $brstr} \
 621                 ${mcval:+mcast-rate $mcval} \
 622                 ${keyspec:+keys $keyspec}
 623 }
 624
 625 mac80211_setup_mesh() {
 626         json_get_vars ssid mesh_id mcast_rate
 627
 628         mcval=
 629         [ -n "$mcast_rate" ] && wpa_supplicant_add_rate mcval "$mcast_rate"
 630         [ -n "$mesh_id" ] && ssid="$mesh_id"
 631
 632         case "$htmode" in
 633                 VHT20|HT20) mesh_htmode=HT20;;
 634                 HT40*|VHT40)
 635                         case "$hwmode" in
 636                                 a)
 637                                         case "$(( ($channel / 4) % 2 ))" in
 638                                                 1) mesh_htmode="HT40+" ;;
 639                                                 0) mesh_htmode="HT40-";;
 640                                         esac
 641                                 ;;
 642                                 *)
 643                                         case "$htmode" in
 644                                                 HT40+) mesh_htmode="HT40+";;
 645                                                 HT40-) mesh_htmode="HT40-";;
 646                                                 *)
 647                                                         if [ "$channel" -lt 7 ]; then
 648                                                                 mesh_htmode="HT40+"
 649                                                         else
 650                                                                 mesh_htmode="HT40-"
 651                                                         fi
 652                                                 ;;
 653                                         esac
 654                                 ;;
 655                         esac
 656                 ;;
 657                 VHT80)
 658                         mesh_htmode="80Mhz"
 659                 ;;
 660                 VHT160)
 661                         mesh_htmode="160Mhz"
 662                 ;;
 663                 *) mesh_htmode="NOHT" ;;
 664         esac
 665         iw dev "$ifname" mesh join "$ssid" freq $freq $mesh_htmode \
 666                 ${mcval:+mcast-rate $mcval} \
 667                 beacon-interval $beacon_int
 668 }
 669
 670 mac80211_setup_vif() {
 671         local name="$1"
 672         local failed
 673
 674         json_select data
 675         json_get_vars ifname
 676         json_select ..
 677
 678         json_select config
 679         json_get_vars mode
 680         json_get_var vif_txpower txpower
 681
 682         ip link set dev "$ifname" up || {
 683                 wireless_setup_vif_failed IFUP_ERROR
 684                 json_select ..
 685                 return
 686         }
 687
 688         set_default vif_txpower "$txpower"
 689         [ -z "$vif_txpower" ] || iw dev "$ifname" set txpower fixed "${vif_txpower%%.*}00"
 690
 691         case "$mode" in
 692                 mesh)
 693                         wireless_vif_parse_encryption
 694                         freq="$(get_freq "$phy" "$channel")"
 695                         if [ "$wpa" -gt 0 -o "$auto_channel" -gt 0 ] || chan_is_dfs "$phy" "$channel"; then
 696                                 mac80211_setup_supplicant || failed=1
 697                         else
 698                                 mac80211_setup_mesh
 699                         fi
 700                         for var in $MP_CONFIG_INT $MP_CONFIG_BOOL $MP_CONFIG_STRING; do
 701                                 json_get_var mp_val "$var"
 702                                 [ -n "$mp_val" ] && iw dev "$ifname" set mesh_param "$var" "$mp_val"
 703                         done
 704                 ;;
 705                 adhoc)
 706                         wireless_vif_parse_encryption
 707                         mac80211_setup_adhoc_htmode
 708                         if [ "$wpa" -gt 0 -o "$auto_channel" -gt 0 ]; then
 709                                 freq="$(get_freq "$phy" "$channel")"
 710                                 mac80211_setup_supplicant_noctl || failed=1
 711                         else
 712                                 mac80211_setup_adhoc
 713                         fi
 714                 ;;
 715                 sta)
 716                         mac80211_setup_supplicant || failed=1
 717                 ;;
 718         esac
 719
 720         json_select ..
 721         [ -n "$failed" ] || wireless_add_vif "$name" "$ifname"
 722 }
 723
 724 get_freq() {
 725         local phy="$1"
 726         local chan="$2"
 727         iw "$phy" info | grep -E -m1 "(\* ${chan:-....} MHz${chan:+|\\[$chan\\]})" | grep MHz | awk '{print $2}'
 728 }
 729
 730 chan_is_dfs() {
 731         local phy="$1"
 732         local chan="$2"
 733         iw "$phy" info | grep -E -m1 "(\* ${chan:-....} MHz${chan:+|\\[$chan\\]})" | grep -q "MHz.*radar detection"
 734         return $!
 735 }
 736
 737 mac80211_interface_cleanup() {
 738         local phy="$1"
 739
 740         for wdev in $(list_phy_interfaces "$phy"); do
 741                 ip link set dev "$wdev" down 2>/dev/null
 742                 iw dev "$wdev" del
 743         done
 744 }
 745
 746 mac80211_set_noscan() {
 747         hostapd_noscan=1
 748 }
 749
 750 drv_mac80211_cleanup() {
 751         hostapd_common_cleanup
 752 }
 753
 754 drv_mac80211_setup() {
 755         json_select config
 756         json_get_vars \
 757                 phy macaddr path \
 758                 country chanbw distance \
 759                 txpower antenna_gain \
 760                 rxantenna txantenna \
 761                 frag rts beacon_int:100 htmode
 762         json_get_values basic_rate_list basic_rate
 763         json_select ..
 764
 765         find_phy || {
 766                 echo "Could not find PHY for device '$1'"
 767                 wireless_set_retry 0
 768                 return 1
 769         }
 770
 771         wireless_set_data phy="$phy"
 772         mac80211_interface_cleanup "$phy"
 773
 774         # convert channel to frequency
 775         [ "$auto_channel" -gt 0 ] || freq="$(get_freq "$phy" "$channel")"
 776
 777         [ -n "$country" ] && {
 778                 iw reg get | grep -q "^country $country:" || {
 779                         iw reg set "$country"
 780                         sleep 1
 781                 }
 782         }
 783
 784         hostapd_conf_file="/var/run/hostapd-$phy.conf"
 785
 786         no_ap=1
 787         macidx=0
 788         staidx=0
 789
 790         [ -n "$chanbw" ] && {
 791                 for file in /sys/kernel/debug/ieee80211/$phy/ath9k/chanbw /sys/kernel/debug/ieee80211/$phy/ath5k/bwmode; do
 792                         [ -f "$file" ] && echo "$chanbw" > "$file"
 793                 done
 794         }
 795
 796         set_default rxantenna 0xffffffff
 797         set_default txantenna 0xffffffff
 798         set_default distance 0
 799         set_default antenna_gain 0
 800
 801         [ "$txantenna" = "all" ] && txantenna=0xffffffff
 802         [ "$rxantenna" = "all" ] && rxantenna=0xffffffff
 803
 804         iw phy "$phy" set antenna $txantenna $rxantenna >/dev/null 2>&1
 805         iw phy "$phy" set antenna_gain $antenna_gain
 806         iw phy "$phy" set distance "$distance"
 807
 808         [ -n "$frag" ] && iw phy "$phy" set frag "${frag%%.*}"
 809         [ -n "$rts" ] && iw phy "$phy" set rts "${rts%%.*}"
 810
 811         has_ap=
 812         hostapd_ctrl=
 813         hostapd_noscan=
 814         for_each_interface "ap" mac80211_check_ap
 815
 816         rm -f "$hostapd_conf_file"
 817
 818         for_each_interface "sta adhoc mesh" mac80211_set_noscan
 819         [ -n "$has_ap" ] && mac80211_hostapd_setup_base "$phy"
 820
 821         for_each_interface "sta adhoc mesh monitor" mac80211_prepare_vif
 822         for_each_interface "ap" mac80211_prepare_vif
 823
 824         [ -n "$hostapd_ctrl" ] && {
 825                 /usr/sbin/hostapd -s -P /var/run/wifi-$phy.pid -B "$hostapd_conf_file"
 826                 ret="$?"
 827                 wireless_add_process "$(cat /var/run/wifi-$phy.pid)" "/usr/sbin/hostapd" 1
 828                 [ "$ret" != 0 ] && {
 829                         wireless_setup_failed HOSTAPD_START_FAILED
 830                         return
 831                 }
 832         }
 833
 834         for_each_interface "ap sta adhoc mesh monitor" mac80211_setup_vif
 835
 836         wireless_set_up
 837 }
 838
 839 list_phy_interfaces() {
 840         local phy="$1"
 841         if [ -d "/sys/class/ieee80211/${phy}/device/net" ]; then
 842                 ls "/sys/class/ieee80211/${phy}/device/net" 2>/dev/null;
 843         else
 844                 ls "/sys/class/ieee80211/${phy}/device" 2>/dev/null | grep net: | sed -e 's,net:,,g'
 845         fi
 846 }
 847
 848 drv_mac80211_teardown() {
 849         wireless_process_kill_all
 850
 851         json_select data
 852         json_get_vars phy
 853         json_select ..
 854
 855         mac80211_interface_cleanup "$phy"
 856 }
 857
 858 add_driver mac80211